Bo ring-mac mine



(No Model.)

W. D. TRIPP.

BORING MAGHINE.

No. 386,566. Patented July 24, 1888.

4%.IZIZVEZR I I WITNESSES:

$4M M W 5% MM,

UNITED STATES PATENT ()FFICE.

\VILLIAM D. TRIPP, OF AUGUSTA, KANSAS.

BORING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 386,566, dated July 24,1888.

Application filed August 19. 1887. Serial No. 247,332.

To all whom it may concern:

Be it known that I, \VILLIAM D. TRIPP, of Augusta, in the county ofButler and State of Kansas, have invented a new and useful Ilnprovementin Boring-lllachines, which improvement is fully set forth in thefollowing specification and accompanying drawings, in which Figure 1 isa perspective view of my boring machine in working position, and Fig. 2a table with back-rest and clamp for holding fellies or other curvedforms.

The object of my invention is to provide a useful and reliable machine,which may be readily made of inexpensive materials in a few hours timeby any mechanic of ordinary skill. It performs its work accurately andrapidly, without the discomfort and uncertainty which attend the use ofappliances in general use, all of which will now be fully set forth indetail.

In theaecompanyingdrawings, Arepresents the bench or support of thedevice.

B B are vertical side cleats, the upper ends of which are secured to thehorizontal slidebox 0 and the lower parts slotted at B, to render themadjustable on iron bolts D D, which pass transversely through the cleatsB and the bench A, and are fastened, when in position, by thumb-nuts D.

Preferably the slots B in the standards B will be made quite wide, theobject being to provide for raising or lowering either end of the box 0,so as to enable the operator to bore holes at an angle to the line ofthe bench A.

E is a sliding bar which moves freely in a groove in the box 0. It iscut away on the (No model.)

lower side to allow free passage to the bitstock. An iron plate, F, onits lower surface is designed to strengthen the bar.

G is the bit stock, made of an iron rod of suitable size. It is fittedto a crank, H, at one end and provided with a chuck, I, for hits, at theother end. A lever, J, serves to move the sliding bar forward as theWork progresses.

Fig. 2 illustrates a table with clamp K and curved backrest L, forfellies M and other curved forms.

The frame or bench has a suitable slot, A, at its rear end, to enablethe work to be seen red to the bench by means of bolts or otherwise.

That I claim as new is-- 1. In a boring-machine, a frame-work consistingof a bench having retainingbolts and a horizontal box carrying abitstock and having side cleats provided with wide slots, substantiallyas herein set forth, whereby the operator can here holes at an angle tothe line of the bench.

2. The combination of a bench having rctaining-bolts on the sidesthereof, with a bitstock frame having vertical slotted side cleats, anda sliding bar with a lever attached for operating the same,substantially as herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand,this 27th day of May, 1887, in the presence of witnesses.

IVILLIAM D. TRIPP.

\Vitnesses:

J. A. RHOADES, G. R. MARTIN.

